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<?php
/**
* Hoa
*
*
* @license
*
* New BSD License
*
* Copyright © 2007-2017, Hoa community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Hoa nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
namespace Psy\Readline\Hoa;
/**
* Interface \Hoa\Stream\IStream\Lockable.
*
* Interface for lockable input/output.
*
* @license New BSD License
*/
interface StreamLockable extends IStream
{
/**
* Acquire a shared lock (reader).
*
* @const int
*/
const LOCK_SHARED = \LOCK_SH;
/**
* Acquire an exclusive lock (writer).
*
* @const int
*/
const LOCK_EXCLUSIVE = \LOCK_EX;
/**
* Release a lock (shared or exclusive).
*
* @const int
*/
const LOCK_RELEASE = \LOCK_UN;
/**
* If we do not want $this->lock() to block while locking.
*
* @const int
*/
const LOCK_NO_BLOCK = \LOCK_NB;
/**
* Portable advisory locking.
* Should take a look at stream_supports_lock().
*
* @param int $operation operation, use the self::LOCK_* constants
*
* @return bool
*/
public function lock(int $operation): bool;
}
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